diff --git a/src/pocketmine/inventory/BaseInventory.php b/src/pocketmine/inventory/BaseInventory.php
index 268c808c7..2249298cd 100644
--- a/src/pocketmine/inventory/BaseInventory.php
+++ b/src/pocketmine/inventory/BaseInventory.php
@@ -280,6 +280,7 @@ abstract class BaseInventory implements Inventory{
 					if($slot->getCount() <= 0){
 						unset($itemSlots[$index]);
 					}
+					break;
 				}
 			}
 		}